On a dirt road past rows of date trees, just feet from a dry section of Colorado River, a small construction crew is putting up a towering border wall that the government hopes will reduce — for good — the flow of immigrants who cross the U.S.-Mexico border illegally.

California police have arrested a woman who threw a feminine hygiene device containing "what appeared to be blood" onto the floor of the state Senate, splashing onto lawmakers and forcing them to finish their work in a committee room on the final day of the legislative session.